Bronchial reactivity and airflow obstruction in rheumatoid arthritis.
Ann Rheum Dis
; 53(8): 511-4, 1994 Aug.
Article
em En
| MEDLINE
| ID: mdl-7944635
ABSTRACT
OBJECTIVES:
To investigate the prevalence of airways obstruction and bronchial reactivity to inhaled methacholine in rheumatoid arthritis patients and unselected controls. The control population consisted of patients attending the rheumatology department for minor degenerative joint problems.METHODS:
One hundred patients with rheumatoid arthritis (RA) [72 (72%) women, 28 (28%) men; mean (SD) age 58 (10) years] and fifty controls [30 (60%) women, 20 (40%) men; mean (SD) age 56 (9) years] were studied. Detailed medical, smoking and drug histories were taken; skin prick tests were performed to assess atopy and chest and hand radiographs were performed. Spirometry, flow volume loops and gas transfer factor measurement were performed to detect airflow obstruction and methacholine inhalation tests were carried out to assess bronchial reactivity.RESULTS:
There was no significant difference between rheumatoid arthritis patients and the controls in age, sex, smoking status and atopy on skin prick testing (p < 0.05). A significantly higher number of patients with RA had a history of wheeze compared with the controls (18% v 4%, p < 0.05). FEV1, FVC, FEV1/FVC, FEF25-75%, FEF25%, FEF50% and FEF75% were all significantly lower in the rheumatoid arthritis group (p < 0.05). A significantly higher number of patients with RA compared with controls showed bronchial reactivity to inhaled methacholine [55 (55%) v 8 (16%), p < 0.05]. FEV1, FVC, FEV1/FVC, FEF25-75%, FEF25%, FEF50% and FEF75% were all significantly lower among the patients with RA achieving PD20 FEV1 to inhaled methacholine (p < 0.05).CONCLUSION:
In unselected rheumatoid arthritis patients both airflow obstruction and bronchial reactivity are significantly increased compared with controls.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artrite Reumatoide
/
Hiper-Reatividade Brônquica
/
Pneumopatias Obstrutivas
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Ann Rheum Dis
Ano de publicação:
1994
Tipo de documento:
Article
País de afiliação:
Reino Unido